Problem is, I can't seem to figure out how to attach it to the camera. I've tried looking on google, but the results talk about a screw on, which doesn't make sense to me since there's nothing on the camera for me to screw it on to. I'm assuming it would be on the front of the camera though, since that's where the shutter release is.

OK, there are two ways to have a flex shutter release attached to your Yashicamat:

and...

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The first Yashicamat has no use for the adapter, the cable release srews directly into the shutter, which has a hole with an inner thread on it.

The second, you need the adapter and you have to first unscrew the collar (ring) on the base of the shutter. Then simply attach the adapter in its place and attach the flex shutter release into the adapter.

If it doesn't come off easily I use an old mechanic's trick. I try to actually screw it in tighter by a bit, then I try to reverse motion and unscrew it. It has solved a few stubborn cases...

If you have a small vise wrench, tape some painter's tape around the jaws and try unscrewing the collar without marring it. Sometimes, a tiny drop of WD-40 applied with a toothpick at the seam where the collar comes off might help.